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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 14:29:10 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 14:29:10 +0000
commit2aa4a82499d4becd2284cdb482213d541b8804dd (patch)
treeb80bf8bf13c3766139fbacc530efd0dd9d54394c /js/src/tests/non262/Reflect/has.js
parentInitial commit. (diff)
downloadfirefox-2aa4a82499d4becd2284cdb482213d541b8804dd.tar.xz
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Adding upstream version 86.0.1.upstream/86.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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diff --git a/js/src/tests/non262/Reflect/has.js b/js/src/tests/non262/Reflect/has.js
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+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/ */
+
+// Reflect.has is identical to the `in` operator.
+assertEq(Reflect.has({x: 0}, "x"), true);
+assertEq(Reflect.has({x: 0}, "y"), false);
+assertEq(Reflect.has({x: 0}, "toString"), true);
+
+// The target can be an array; Reflect.has works on array elements.
+var arr = ["zero"];
+arr[10000] = 0;
+assertEq(Reflect.has(arr, "10000"), true);
+assertEq(Reflect.has(arr, 10000), true);
+assertEq(Reflect.has(arr, "-0"), false);
+assertEq(Reflect.has(arr, -0), true);
+
+// And string objects (though not string primitives; see target.js).
+var str = new String("hello");
+assertEq(Reflect.has(str, "4"), true);
+assertEq(Reflect.has(str, "-0"), false);
+assertEq(Reflect.has(str, -0), true);
+
+// Proxy without .has() handler method
+var obj = {get prop() {}};
+for (var i = 0; i < 2; i++) {
+ obj = new Proxy(obj, {});
+ assertEq(Reflect.has(obj, "prop"), true);
+ assertEq(Reflect.has(obj, "nope"), false);
+}
+
+// Proxy with .has() handler method
+obj = new Proxy({}, {
+ has(t, k) { return k.startsWith("door"); }
+});
+assertEq(Reflect.has(obj, "doorbell"), true);
+assertEq(Reflect.has(obj, "dormitory"), false);
+
+
+// For more Reflect.has tests, see target.js and propertyKeys.js.
+
+reportCompare(0, 0);